original descriptionZenkevitch L. A. (1966). The systematics and distribution of abyssal and hadal (ultra-abyssal) Echiuroidea. <em>Galathea Report.</em> 8: 175–184., available online athttp://www.zmuc.dk/InverWeb/Galathea/Galathea_p3.html page(s): 180. [details] Available for editors [request]